Companies can treat their employees to a fun day at the Fair where they may enjoy rides, food, entertainment and more providing them with a day out theyâll never forget! Closed to the general public during the day, State Fair Meadowlands makes a perfect venue for corporate outings.
Choice of the type of pressure switch to be used - diaphragm, bourdon tube or piston - also must be governed by the proof. pressure to which it will be subjected. (Proof pressure is the. highest surge pressure that will ever be experienced in a system.)
Control valves. 1  Pressure relief valves are used in several places in hydraulic machinery; on the return circuit to maintain a small amount of pressure for brakes, pilot lines, etc... On hydraulic cylinders, to prevent overloading and hydraulic line/seal rupture.